VOLTWORKS VK-300A User manual

Brand
VOLTWORKS
Model
VK-300A
Category
Cool boxes
Type
User manual
MODEL: VK-300A
Warning: This manual contains important safety and
operating instruction. Please read it carefully before use
the unit.
USER'S MANUAL
300W Power Inverter
A. INSTRUCTION
The VOLTWORKS Power inverter product line is used for back-up power. The power
inverter converts DC (direct current/car battery) power into AC (alternating current)
power that can be used for running a wide variety of tools and appliances. This inverter is
perfect for providing mobile power in cars, boats and work trucks. The inverter can also
be utilized as a back-up source of electricity in the event of an electrical failure or for
several off-grid applications such as camping or in your RV.
B. Please read this instruction manual carefully and make sure your inverter is
installed properly before using.
C. Warning and safety
1) Read the manual before connecting this inverter and keep it for future reference.
2) Don't put the inverter under sunlight, near a heating source, wet or humid environment.
3) The case housing of inverter will be hot while using. Do not allow flammable materials
to contact the inverter, such as clothing, sleeping bags, carpet or any other flammable
materials. The heat from the inverter can damage these items.
4) The power inverter is designed to be used with a negative ground electrical system!
Don't use with positive ground electrical systems (the majority of modern
automobiles, RVs, trucks and boats are negative ground).
5) Do not disassemble the unit: it may cause fire or electric shock.
6) This device should only be serviced by a qualified technician. This item does not have
any serviceable parts.
7) Prevent body contact with grounded surfaces such as pipes, radiators, ranges, and
refrigerator enclosures during installation.
8) Do not operate the inverter if under the influence of alcohol or drugs. Read warning
labels on prescriptions to determine if your judgement or reflexes are impaired while
taking drugs. If there is any doubt, do not operate the inverter.
9) People with pacemakers should consult their physician(s) before using this product.
Electromagnetic fields in close proximity to a pacemaker could cause interference to
or failure of the pacemaker.
10) Keep the inverter well-ventilated. Do not place any objects on top of or next to the
inverter or allow anything to cover the cooling fans; doing so can cause the inverter to
overheat, causing a potential fire hazard and/or damage to the inverter. Leave
adequate ventilation space underneath the inverter as well; thick carpets or rugs can
obstruct air flow, causing the inverter to overheat.
11) Avoid unintentional starting. Be sure the switch is in the OFF position when not in use
and before plugging in any appliance.
12) Keep inverter away from children. Don't install the inverter where it is accessible to
children.
13) The power inverter will output the same AC power as utility power, please treat the AC
outlets as carefully as you would your home AC outlets. Do not put anything other
than an electrical appliance into the output terminal. It may cause shock or fire.
14)Disconnect the battery and inverter when not in use.
Note: Performance of this unit may vary depending on the available battery power or
appliance wattage.
1. 2.
DC Input Voltage
Output Wave Form
Output Power
Output Voltage
Surge Power
Over Load power
Efficiency
No Load Current
Battery Low Alarm
Battery Low Shutdown
Input Over Voltage Shutdown
Operating Temperature
Over Temperature Protection
FAN
USB Output
Internal DC Input Fuse
Power Switch
Cigarette Lighter Cable
Dimensions (LxWxH)
Net Weight
D. Features：
Model
(Automatic Recovery/Shutdown)
1)Adopt advanced MPU control.
12V (9.8-16V)
Modified sine wave
300W
AC110-120V 60Hz
600W for 40 milsec
400W
about 90%
0.25A
DC 9.8 ± 0.5V
32-113° F
149° F ± 41° F
Temperature control 104° F± 41° F
Must Be Fitted, Use 30A Maximum
ON/OFF Control
YES
5.63” x 3.42” x 1.97”
1.2 lb
DC 9.5 ± 0.5V
(Automatic Recovery at 12.5VDC)
DC16±0.5 V
(Automatic Recovery at 14VDC)
5 VDC, Max 4.8A(Dual 2.4A)
Automatic identification charging IC
Warning: The warnings, cautions, and instructions discussed in this instruction manual
cannot cover all possible conditions and situations that may occur. It must be understood
by the operator that common sense and caution are factors which cannot be built into
this product, but must be supplied by operator. Guard against electric shock. Do not
open the metal case; risk of electric shock.
Data
3.
F. USING THE POWER INVERTER
1. Check the output voltage and capacity of the battery. The battery (s) should match
the voltage of the inverter and have enough capacity for the load.
2. Insert the cigarette plug into the car cigarette socket and ensure well connected.
3. Press the power switch button on your inverter and a green LED will light up
indicating that the inverter is on.
4. Before plugging anything into your inverter, make sure the appliance you are trying
to power is shut OFF, then plug it into the AC outlet of your inverter and power on
your appliance.
5. Once finished using the inverter, turn off your electrical appliance and the inverter.
The indicator lights should be off.
AC outlet
USB ports
LED display (battery input
voltage, fault codes display)
Power indicator
Fault indicator
4.
Warning: The car cigarette outlet usually has current limit requirements. It is
suggested that the continuous load power should not exceed 100W when the
original cigarette holder is supplied, otherwise the car built-in fuse may be burned.
If more power requested, a special cigarette outlet should be supplied to connect
directly from battery.
G. USING THE USB
The inverter provides dual USB ports and stable 5V DC to the external device, the
total maximum current is 4.8A, and the maximum output current of a single USB
port is 2.4A, which can directly supply or charge a portable device with a USB
interface.
USB ports built-in automatic charging identification IC, support various charging
protocols.
H. BATTERY
Battery operating time depends on battery capacity and load. The formula for
operating time is: battery capacity divided by the value of the load divided by
battery voltage times 1.10%. For example, using the numbers from above, the
battery specification is 12V, 100Ah capacity and the load is 180W. Take battery
capacity 100Ah *12/ 180≈6.6 hours of run time if you fully deplete the battery. This
is NOT recommended. Deep cycle batteries last longer when they are only
depleted to 50% of capacity.
I. SOFT START TECHNOLOGY
The soft start technology built into this inverter protects the unit from delivering
too much AC power at once by gradually increasing the AC voltage pushed out. To
make sure that you are utilizing this feature, turn on the appliance being used
before turning on the inverter. This is especially necessary for equipment that has
an inductive load or electrical motor.
J. OUTPUT VOLTAGE & WAVEFORM
The electrical waveform output of this inverter is Modified sine wave, which has the
same quality as utility and/or domestic power. This type of waveform is suitable for
most electrical devices, appliances and tools. This pure sine wave unit provides
more capabilities than modified sine wave inverters because it is a cleaner form of
power. The pure sine wave also effectively reduces the noise produced while using
appliances.
K. PROTECTIONS IN THE INVERTER
1. Input under-voltage alarm(LO): When the input DC voltage is lower than 9.8V, LED
display will indicate “LO”, the buzzer will whistle intermittently to remind that the
inverter will go into the under voltage protection.
2. Over voltage protection(HI): The inverter will automatically shut down when the
input DC voltage is higher than 16V. LED display will indicate “HI”. The buzzer will
whistle continuously and the green light is off, red light is on. Please turn off the
inverter and adjust the input voltage to the admissible range.
E. Parts list
Cigarette
Lighter
Switch
Cooling fan
If all of the above methods have been tried, the product still not work properly.
The internal circuit of the product may be out of order. Please return the
product to the supplier for maintenance.
Do not use it when the
battery is charging. Check
the rated voltage of the
battery and make sure that it
is in the allowable range of
the input voltage
1. The switch is off.
2. The battery lead isn't
connected well
Cut off the load and let it
cool naturally for 10 to
30 minutes. Restart it after it
resumes to normal
temperature. The load
power is too large, reduce
the total load power to the
range of rated power. Avoid
blocking the vent and
improve the ventilation
condition. Reduce the
ambient temperature.
1. Turn on the power switch.
2. Check the cables and
make sure they are tightly
connected.
3. Overload protection(OL)n: The inverter will automatically shut down when the load
is higher than the rated power. LED display will indicate “OL”. The buzzer will
whistle continuously. Turn off the inverter and resume to normal operation after
taking away the excessive load.
4. Short-circuit protection: The AC output will be automatically shut down when short
circuited. And LED display will indicate “OL” It will automatically reset after the
problem is solved.
5. Thermal protection(OH): The unit will get hot during operation. If the temperature is
higher than 149°F, the inverter will automatically shut down. LED display will
indicate “OH”Then the buzzer will whistle continuously and the green light is off,
red light is on. Please turn off the inverter, and continue using it after the
temperature goes back to normal naturally. Meanwhile find out the factors causing
the fault, such as ventilation, ambient temperature, vent, load power etc. It can
avoid similar issues from happening again.
Reduce a load power,
or turn on the appliance
first, then turn on the
inverter.
1. Use a true RMS multimeter
to measure, such as the
model FLUKE 177/179.
2.Try to maintain the input
voltage in the range of
rated power
3.Change the battery of the
multimeter then test again.
1. RMS Multimeter
measurement error
2. The battery power of RMS
Multimeter is low.
The input voltage is too high
or too low
While using with
TV or audio, there
is snowflake on
the screen or noise
from the audio.
1. Keep the inverter far from
antenna.
2. Use screened antenna.
5. 6.
L. Troubleshooting Tips
M. WARRANTY
This product is designed using the most modern digital technology and under very
strict quality control and testing guidelines.If,however, you feel this product is not
performing as it should, please contact us: usvoltworks@gmail.com
We will do our best to resolve your concerns. If the product needs repair or
replacement, make sure to keep your receipt/invoice, as that will need to be sent
back along with the package and prepaid to VOLTWORKS. You have a full 18
months warranty from date of purchase.
The following situations will void warranty:
1. The box is distorted, damaged or changed, and interior parts damaged because of
an exterior hit or drop not reported at time of delivery.
2. Connect the DC power incorrectly reversing the polarity.
3. Dismantled or repaired the unit by an unauthorized person.
4. The unit was damaged by incorrect installation or operating method.
To find out where to buy any of our products, you may also e-mail:
Customer Service Contact: usvoltworks@gmail.com
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VOLTWORKS VK-300A User manual

Brand
VOLTWORKS
Model
VK-300A
Category
Cool boxes
Type
User manual
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